Double Star Calculator - Orbit

Orbital Elements for HDS2203
WDS: HDS2203 WDS ID/Discoverer
P: 26.310 Orbital period (years)
a: 0.23 Semi-major axis (arcseconds)
i: 80.8 Inclination (degrees)
Ω: 117.2 Longitude of ascending node (degrees)
T: 2013.880 Epoch of periastron passage (year)
e: 0.372 Eccentricity
ω: 297.8 Longitude of periastron (degrees)
Start-Year: 2011.845 Year
End-Year: 2038.155 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS2203
Position: 153755.38+500455.8 Epoch-2000 right ascension and declination
WDS-ID: 15379+5005 WDS designation
Discoverer Code: HDS2203 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 139779 HD catalog number
Hipparcos number: 76540 Hipparcos catalog number
V1: 8.03 Magnitude of the primary
V2: 9.84 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Cve2013b Reference

Double Star Orbit for HDS2203



WDS 6th Orbit including measures of HDS2203

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of HDS2203
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.137   277.61
--------------------------
2011.85    0.090   311.81
2011.94    0.083   313.24
2012.04    0.076   314.93
2012.14    0.070   316.94
2012.24    0.063   319.40
2012.34    0.056   322.45
2012.44    0.049   326.34
2012.54    0.043   331.44
2012.64    0.037   338.29
2012.74    0.031   347.70
2012.84    0.027     0.61
2012.94    0.024    17.30
2013.04    0.024    36.03
2013.14    0.026    53.32
2013.24    0.030    66.97
2013.34    0.036    76.99
2013.44    0.042    84.27
2013.54    0.048    89.66
2013.64    0.055    93.76
2013.74    0.061    96.97
2013.84    0.068    99.55
2013.94    0.075   101.66
2014.04    0.081   103.42
2014.14    0.088   104.93
2014.24    0.094   106.23
2014.34    0.100   107.37
2014.44    0.106   108.37
2014.54    0.112   109.27
2014.64    0.118   110.09
2014.74    0.123   110.83
2014.84    0.128   111.52
2014.94    0.133   112.15
2015.04    0.137   112.74
2015.14    0.142   113.29
2015.24    0.146   113.81
2015.34    0.150   114.30
2015.44    0.153   114.77
2015.54    0.156   115.22
2015.64    0.159   115.65
2015.74    0.162   116.06
2015.84    0.165   116.47
2015.94    0.167   116.86
2016.04    0.169   117.24
2016.14    0.171   117.61
2016.24    0.172   117.97
2016.34    0.174   118.33
2016.44    0.175   118.68
2016.54    0.176   119.03
2016.64    0.177   119.38
2016.74    0.177   119.72
2016.84    0.177   120.06
2016.94    0.178   120.41
2017.04    0.178   120.75
2017.14    0.177   121.09
2017.24    0.177   121.43
2017.34    0.176   121.77
2017.44    0.176   122.12
2017.54    0.175   122.47
2017.64    0.174   122.82
2017.74    0.173   123.18
2017.84    0.171   123.54
2017.94    0.170   123.91
2018.04    0.169   124.29
2018.14    0.167   124.67
2018.24    0.165   125.06
2018.34    0.163   125.45
2018.44    0.162   125.86
2018.54    0.159   126.28
2018.64    0.157   126.71
2018.74    0.155   127.15
2018.84    0.153   127.60
2018.94    0.150   128.07
2019.04    0.148   128.55
2019.14    0.146   129.05
2019.24    0.143   129.56
2019.34    0.140   130.10
2019.44    0.138   130.66
2019.54    0.135   131.24
2019.64    0.132   131.84
2019.74    0.129   132.47
2019.84    0.126   133.13
2019.94    0.123   133.82
2020.04    0.120   134.54
2020.14    0.117   135.30
2020.24    0.114   136.10
2020.34    0.111   136.95
2020.44    0.108   137.84
2020.54    0.105   138.78
2020.64    0.102   139.79
2020.74    0.099   140.85
2020.84    0.096   141.99
2020.94    0.093   143.20
2021.04    0.090   144.49
2021.14    0.086   145.88
2021.24    0.083   147.37
2021.34    0.080   148.97
2021.44    0.077   150.70
2021.54    0.074   152.56
2021.64    0.072   154.57
2021.74    0.069   156.75
2021.84    0.066   159.12
2021.94    0.063   161.68
2022.04    0.061   164.45
2022.14    0.059   167.46
2022.24    0.056   170.71
2022.34    0.054   174.21
2022.44    0.053   177.97
2022.54    0.051   181.97
2022.64    0.050   186.22
2022.74    0.049   190.68
2022.84    0.048   195.31
2022.94    0.047   200.06
2023.04    0.047   204.88
2023.14    0.047   209.69
2023.24    0.048   214.44
2023.34    0.049   219.06
2023.44    0.050   223.51
2023.54    0.051   227.74
2023.64    0.053   231.73
2023.74    0.055   235.47
2023.84    0.057   238.96
2023.94    0.059   242.19
2024.04    0.061   245.18
2024.14    0.064   247.93
2024.24    0.066   250.48
2024.34    0.069   252.82
2024.44    0.072   254.99
2024.54    0.075   256.98
2024.64    0.078   258.83
2024.74    0.081   260.54
2024.84    0.084   262.12
2024.94    0.087   263.59
2025.04    0.090   264.96
2025.14    0.093   266.24
2025.24    0.097   267.43
2025.34    0.100   268.54
2025.44    0.103   269.59
2025.54    0.106   270.57
2025.64    0.110   271.49
2025.74    0.113   272.36
2025.84    0.116   273.18
2025.94    0.119   273.96
2026.04    0.122   274.70
2026.14    0.126   275.39
2026.24    0.129   276.06
2026.34    0.132   276.69
2026.44    0.135   277.29
2026.54    0.139   277.86
2026.64    0.142   278.41
2026.74    0.145   278.93
2026.84    0.148   279.43
2026.94    0.151   279.91
2027.04    0.154   280.38
2027.14    0.157   280.82
2027.24    0.160   281.25
2027.34    0.163   281.66
2027.44    0.166   282.05
2027.54    0.169   282.44
2027.64    0.172   282.81
2027.74    0.175   283.16
2027.84    0.178   283.51
2027.94    0.181   283.84
2028.04    0.183   284.17
2028.14    0.186   284.48
2028.24    0.189   284.79
2028.34    0.191   285.09
2028.44    0.194   285.37
2028.54    0.197   285.66
2028.64    0.199   285.93
2028.74    0.202   286.20
2028.84    0.204   286.46
2028.94    0.207   286.71
2029.04    0.209   286.96
2029.14    0.211   287.20
2029.24    0.214   287.44
2029.34    0.216   287.68
2029.44    0.218   287.90
2029.54    0.220   288.13
2029.64    0.222   288.35
2029.74    0.224   288.56
2029.84    0.226   288.77
2029.94    0.228   288.98
2030.04    0.230   289.19
2030.14    0.232   289.39
2030.24    0.234   289.58
2030.34    0.236   289.78
2030.44    0.237   289.97
2030.54    0.239   290.16
2030.64    0.240   290.35
2030.74    0.242   290.53
2030.84    0.243   290.72
2030.94    0.245   290.90
2031.04    0.246   291.07
2031.14    0.247   291.25
2031.24    0.248   291.43
2031.34    0.250   291.60
2031.44    0.251   291.77
2031.54    0.252   291.94
2031.64    0.253   292.11
2031.74    0.253   292.28
2031.84    0.254   292.44
2031.94    0.255   292.61
2032.04    0.255   292.78
2032.14    0.256   292.94
2032.24    0.256   293.10
2032.34    0.257   293.27
2032.44    0.257   293.43
2032.54    0.257   293.59
2032.64    0.257   293.75
2032.74    0.258   293.92
2032.84    0.257   294.08
2032.94    0.257   294.24
2033.04    0.257   294.40
2033.14    0.257   294.56
2033.24    0.256   294.73
2033.34    0.256   294.89
2033.44    0.255   295.06
2033.54    0.255   295.22
2033.64    0.254   295.39
2033.74    0.253   295.55
2033.84    0.252   295.72
2033.94    0.251   295.89
2034.04    0.250   296.06
2034.14    0.249   296.24
2034.24    0.247   296.41
2034.34    0.246   296.59
2034.44    0.244   296.77
2034.54    0.242   296.95
2034.64    0.240   297.13
2034.74    0.238   297.32
2034.84    0.236   297.51
2034.94    0.234   297.71
2035.04    0.232   297.90
2035.14    0.229   298.10
2035.24    0.227   298.31
2035.34    0.224   298.52
2035.44    0.221   298.74
2035.54    0.218   298.96
2035.64    0.215   299.19
2035.74    0.212   299.43
2035.84    0.209   299.67
2035.94    0.205   299.92
2036.04    0.201   300.18
2036.14    0.198   300.45
2036.24    0.194   300.73
2036.34    0.190   301.02
2036.44    0.185   301.33
2036.54    0.181   301.65
2036.64    0.176   301.99
2036.74    0.172   302.34
2036.84    0.167   302.72
2036.94    0.162   303.11
2037.04    0.157   303.54
2037.14    0.151   303.99
2037.24    0.146   304.48
2037.34    0.140   305.00
2037.44    0.135   305.57
2037.54    0.129   306.19
2037.64    0.123   306.87
2037.74    0.117   307.62
2037.84    0.110   308.46
2037.94    0.104   309.39
2038.04    0.097   310.46
2038.14    0.091   311.68






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 17:17:45



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